Home / 2,810,878.32-4,216,240.92-789,138.96

Finding the Fourth Proportional to 2,810,878.32, 4,216,240.92 and 789,138.96

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Solution

The fourth proportional to 2,810,878.32, 4,216,240.92 and 789,138.96 is: 1,183,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810,878.32 : 4,216,240.92 = 789,138.96 : x
  2. Step 2: Convert to fraction form
    2,810,878.32/4,216,240.92 = 789,138.96/x
  3. Step 3: Cross multiply
    2,810,878.32x = 4,216,240.92 × 789,138.96
  4. Step 4: Simplify right side
    2,810,878.32x = 3,327,199,974,718.24
  5. Step 5: Solve for x
    x = 3,327,199,974,718.24/2,810,878.32
  6. Step 6: Final answer
    x = 1,183,686.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.